Cell Energy

Kai is learning about how plants make their own food. He discovers that photosynthesis allows

• an animal to get energy from food

• a cell to produce energy without oxygen

• a plant to produce glucose

• a plant leaf to turn green

Emma is helping her younger brother with his science homework. She asks him, "Do you know which molecule in plants absorbs sunlight for photosynthesis?"

• chloroplast

• thylakoid

• grana

• chlorophyll

James is watching a science demonstration where certain chemical reactions are shown as explosions to indicate energy release. In this demonstration, what do the explosions represent?

• Glucose

• ATP

• Pyruvate

• Cleavage

Charlotte is helping her younger sister with her science homework. She asks, "Which of the following is the correct equation for PHOTOSYNTHESIS?"

• CO₂ + light + H₂O --> O₂ + Sugar

• CO₂ + sugar + H₂O --> O₂ + light

• _O2 + light + H₂O --> CO₂ + Sugar

• CO₂ + O₂ + H₂O --> Light+ Sugar

Maya is studying how plants help clean the air in her neighborhood. She learns that during photosynthesis, a certain gas is removed from the atmosphere by plants. Which gas is it?

• hydrogen

• oxygen

• nitrogen

• carbon dioxide

Nora is helping her younger brother with his science homework. She asks him, "Can you tell me what the products of photosynthesis are?"

• water and carbon dioxide

• oxygen and glucose

• oxygen and carbon dioxide

• oxygen and water

Aiden is learning about how his body gets energy from food. What is the main purpose of Cellular Respiration in his cells?

• make carbon dioxide

• make water

• make glucose

• make ATP

Grace is studying for her biology exam and wants to remember the steps of cell respiration. She has already learned about Glycolysis and the Krebs Cycle. What is the third step she should focus on?

• Glycolysis

• Krebs Cycle

• Calvin Cycle

• Electron Transport Chain

Charlotte is running a marathon and her muscles are using up energy. After cell respiration occurs in her muscle cells, what are the products released?

• CO2 + H20

• Sugar + CO2

• Sugar + O2

• CO2 + H20 + 38 ATP

Elijah is training for a marathon and sometimes runs at a slow pace, while other times he sprints quickly. Which statement BEST compares the type of respiration his muscles use during slow, steady running (aerobic) and during fast sprints (anaerobic)?

• Less ATP is generated during anaerobic respiration than during aerobic respiration

• more water is generated during anaerobic respiration than during aerobic respiration

• more oxygen is generated during anaerobic respiration than during aerobic respiration

• less lactic acid is generated during anaeobic respiration than during aerobic respiration